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US, but it was not underground to contain the effects.
The Buster-Jangle Uncle shot was a 1.2KTon shot at 17 feet underground. The purpose was to study cratering effects. Data from this shot was then scaled up to predict the effects of the MK-8 and MK-11 ground penetrator atomic bombs, which had a yield of 15 to 20 KTons.
What else can I help you with?
Which country exploded 1st underground nuclear device?
every country that has done underground nuclear testing at some point exploded their first underground nuclear device. if you want the first country, that was the US. if you want the most recent, that was North Korea. but this could change any day.
Which country exploded its first under ground nuclear device?
U.s
Which country exploded first its nuclear device?
All countries that have exploded nuclear devices have exploded their first devices. The USA was the first to detonate such a device and the only country to use nuclear warheads in combat. The most recent countries to test nuclear devices are India, Pakistan, and North Korea.
Which country exploded its first underground nuclear device?
Many, but the US Buster-Jangle Uncle effects test was the first. It was 1.2KTons exploded at a depth of about 3 feet, to test cratering effects. It produced massive fallout levels. Most underground testing is done much deeper to prevent contamination.
Asian nation that exploded its first nuclear device in 1974?
India
Which country explore 1st underground nuclear device?
I believe the first underground nuclear test explosion was done by the US at the Nevada Test Site. However it was not intended to contain the blast or radiation. It was an effects shot to evaluate cratering, the bomb was only 3 feet underground. It was part of the 1955 Teapot series.
Which country is the first to use nuclear device?
US
Which country has successfully tested a nuclear device?
North Korea
Which country has recently tested a nuclear device for the first time?
North Korea
When did china exploded her first atom bomb device?
1964
What Happened on February 29 1960?
On February 29, 1960, the United States conducted a nuclear test known as "Operation Niblick," which was part of a series of tests at the Nevada Test Site. This test was significant as it involved the detonation of a nuclear device underground, contributing to the development of the U.S. nuclear arsenal during the Cold War era. The test highlighted the ongoing nuclear arms race and the strategic importance of underground testing to minimize radioactive fallout.
What happened on September 2 1949 that changed the nature of the cold war?
The Soviets got the "bomb" in '49 (they exploded their first nuclear device). Now, the US & USSR had the same weapon. Red China would be next. Then there would be three.
